First lady Michelle Obama worked out with trainers from "The Biggest Loser" at the White House as part of her national Let's Move! initiative. Take a look at other Presidential first ladies and the causes they have supported.

From the viral phenomenon, "Texts from Hillary" to Clint Eastwood and the "invisible Obama," political memes have become increasingly popular online. Check out some of the most popular political memes.

The 2012 election season is in its home stretch, and both Democrats and Republicans know the importance of Florida.

Most polls show President Barack Obama and former Gov. Mitt Romney are in a statistical tie among likely voters.

Romney is hoping to win the Sunshine State next week, and he's back in Florida on Wednesday to campaign for votes.

The Republican presidential candidate will visit Tampa, Coral Gables and Jacksonville. Former Gov. Jeb Bush and Sen. Marco Rubio will campaign with Romney.

Vice President Joe Biden is also visiting Florida. He'll speak in Ocala at the Discovery Center in Tuscawilla Park in Ocala about 3 p.m.

Biden teamed up with former President Bill Clinton at a rally in another swing state -- Ohio.

Meanwhile, First Lady Michelle Obama is set to visit Central Florida on Thursday.

The first lady will hold a rally in Daytona Beach at noon. She'll speak at the Ocean Center on Atlantic Avenue.

Related: White House pets

President's best friend: White House pets

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Susan Sterner/White House Photo

Miss Beazley

In honor of Presidents Day Monday, take a look at photos of first pets dating back to the late 1800s, including Miss Beazley, the Scottish terrier owned by President George W. Bush and first lady Laura Bush while they were in the White House.